Igniting device for acetylene-gas burners



PATENTEI) JAN. 12, 1904.

H. O. THOMSON IGNITING DEVICE FOR AGETYLBNE GAS BURNERS.

APPLICATION FILED NOV. 6, 1902. I

N0 MODEL.

4 oted at Z) to the gas-pillar.

Patented January 12, 1904.

UNITED STATES PATENT OFFICE.

HENRY O. THOMSON, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO ELEC- TRIO GASLIGHTING COMPANY, OF BOSTON, MASSACHUSETTS, A COR- PORATION OF MAINE.

IGNITING DEVICE FOR ACETYLENE-GAS BURNERS.

SPECIFICATION forming part of Letters Patent No. 749,409, dated January12, 1904.

Application filed November 6, 1902. Serial No. 130,342. (No model.)

To all whom it may concern.-

Be it known that I, HENRY O. THOMSON, a citizen of the United States,residing in Boston, Massachusetts, have invented a new and usefulImprovement in Igniting Devices for Acetylene-Gas Burners, of which thefollowing is a specification.

My invention relates to automatic burners, whose general construction isvery well known, adapted to the burning of acetylene gas. Owing to thegreat richness of this gas in carbon, it is necessary to have thelighting electrodes removed from immediate contiguity to the flame, andyet for the purpose of lighting the gas it is necessary that the sparkshould come in contact with it when it first issuedfrom the burner.

My invention consists in a supplementary device automatically broughtinto action,

whereby the issuing gas is conveyed over to the electrodes and thereignited, the flame therefrom extending into contact with the gas issuingfrom the tip of the burner, and thereby igniting the same.

2 5 My invention will be understood from the drawings, in which theordinary form of electric automatic gas-burner is shown, but of which nodescription is necessary further than is connected with my improvement.

3 Figure 1 is an elevation of such burner, showing my device in itsnormal position. Fig. 2 is a similar elevation, showing my device in theposition in which the gas is lighted. Fig. 3 is a top plan showing therelations of my 3 5 device to the double tip of the ordinary acetlene-gas burner. Fig. 4 is a sectional view of the hollow tube G and.its support.

I will now describe the drawings.

B is the ordinary movable armature piv- The ordinary purpose of thisarmature, it will be understood, is to turn the gas-cock and make andbreak contact between two electrodes by elevating the electrode X. Undermy invention I rest upon this armature B a rod D, running in a sleeve Dand abutting against a half-collar E, loosely pivoted to the gas-burnerat e and carrying an upright arm F, at the top of and at about rightangles to which is a short hol- 5 0 low tube G.

The operation of my apparatus will now be plain. In Fig. 1 the apparatusis quiescent. In Fig. 2, a proper magnet having been energized and thearmature B having been attracted in a well-known way, it will be seenthat the movable electrode X has been raised, and thereby an electricspark has been made, by a break of current. Simultaneously with this therod D has forced the collar E upward, thereby swinging the tube G intosuch position that the acetylene gas issuing from one of the double tipsII will passthrough the tube G, carrying the gas close to the electrodes at the time of their separation, where it will be ignited by thespark, and thence the flame will spread to and ignite the gas issuingfrom the other branch of the burner-tip H.

Having described my invention, what I claim is 1. In an automaticallyignited electric acetylene-gas burner, in combination with the burnerand armature thereof, a rod D arranged to be operated by the armature, asupporting-sleeve D therefor, a half-collar E loosely pivoted to thegas-burner, a rod F 7 5 erected upon said half-collar, a short tube Gcarried at the extremity of said rod, the whole being so combined that,upon upward movement of the armature, said tube G will carry theescaping gas from the tip of said burner 0 to the electrodes for thepurpose of ignition by a spark there made; substantially as describedand shown.

2. In an automaticallyignited acetylenegas burner, in combination withthe burner 8 5 and armature thereof, a tube to carry the gas from theburner-tip to the electrodes, and means intermediate of said armatureand burner-tip whereby the vibration of said armature carries the tubeto and away from the 9 burner-tip; substantially as described.

In witness whereof I hereunto subscribe my name this 1st day ofNovember, 1902.

HENRY O. THOMSON.

IVitnesses:

FRED O. VIHAMB'ERLIN, MARY I. GAREAGHAN.

